Javascript operation on Wiki removes all styles

Short description: Javascript operation on Wiki removes all styles on the exportation.

Steps to reproduce:

1. Upload this template in one Jira instance cloud for teststeps (3).docx(with this template we want to remove the image from the mapping Action and after export the mapping with wiki styles)
2. Create an issue of type test and in Action write text with styles and add an image
3. Export the template used in step 1

Actual Result: After you remove the image it's not possible to export the mapping with wiki. All styles are being ignored for teststeps (3) result.docx

Expected Result: After you remove the image the mapping should export the rest of the text with the wiki styles expected.docx